A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Soft soil foundation pile deviation rectifying method
The invention provides a soft soil foundation pile deviation rectifying method. The soft soil foundation pile deviation rectifying method comprises the following steps: (1) a stress relief hole is constructed, specifically, after a site is leveled, the stress relief hole is constructed on soft soil in a soil arch range on the rear side of a foundation pile so as to reduce unbalanced soil pressure acting on the foundation pile; (2) an isolation curtain is constructed, specifically, after construction of the stress relief hole is completed, steel sheet piles are constructed in the deviation direction of the foundation pile to form the U-shaped isolation curtain; (3) high-pressure jet control type deviation rectifying construction is conducted, specifically, high-pressure jet grouting pile construction is conducted on a soil body within the range of 2-4 times of the pile diameter behind the foundation pile through a double-pipe or three-pipe jet grouting technology, and deviation rectifying of the foundation pile is conducted; and (4) real-time monitoring is conducted, specifically, before deviation rectification is started, pile top monitoring points need to be arranged, and when it is monitored that the foundation pile returns to the original pile position, deviation rectification work is completed. According to the method, the foundation pile can be subjected to deviation rectifying and returning, additional internal force cannot be generated on the foundation pile, the problem of deviation of the foundation pile of the soft soil foundation can be greatly solved, and remarkable economic benefits and social benefits are achieved.
本发明提供一种软土地基基桩纠偏方法，步骤如下：(1)应力解除孔施工：在场地平整后，对基桩后侧的土拱范围内软土进行应力解除孔的施工，用于减小作用于基桩上的不平衡土压力；(2)隔离帷幕施工：在应力解除孔施工完成后，在基桩偏位的方向，施工钢板桩形成“U”字型隔离帷幕；(3)高压喷射控制式纠偏施工：对基桩桩后2‑4倍桩径范围内土体采用双管或三管旋喷工艺进行高压旋喷桩的施工，进行基桩的纠偏；(4)实时监测：在开始纠偏前，应进行桩顶监测点布设，当监测到基桩回位至原桩位时，纠偏工作完成。本发明可实现基桩纠偏回位，且不会导致基桩发生附加内力，可极大解决软土地基基桩偏位问题，具有显著的经济效益和社会效益。
Soft soil foundation pile deviation rectifying method
The invention provides a soft soil foundation pile deviation rectifying method. The soft soil foundation pile deviation rectifying method comprises the following steps: (1) a stress relief hole is constructed, specifically, after a site is leveled, the stress relief hole is constructed on soft soil in a soil arch range on the rear side of a foundation pile so as to reduce unbalanced soil pressure acting on the foundation pile; (2) an isolation curtain is constructed, specifically, after construction of the stress relief hole is completed, steel sheet piles are constructed in the deviation direction of the foundation pile to form the U-shaped isolation curtain; (3) high-pressure jet control type deviation rectifying construction is conducted, specifically, high-pressure jet grouting pile construction is conducted on a soil body within the range of 2-4 times of the pile diameter behind the foundation pile through a double-pipe or three-pipe jet grouting technology, and deviation rectifying of the foundation pile is conducted; and (4) real-time monitoring is conducted, specifically, before deviation rectification is started, pile top monitoring points need to be arranged, and when it is monitored that the foundation pile returns to the original pile position, deviation rectification work is completed. According to the method, the foundation pile can be subjected to deviation rectifying and returning, additional internal force cannot be generated on the foundation pile, the problem of deviation of the foundation pile of the soft soil foundation can be greatly solved, and remarkable economic benefits and social benefits are achieved.
本发明提供一种软土地基基桩纠偏方法，步骤如下：(1)应力解除孔施工：在场地平整后，对基桩后侧的土拱范围内软土进行应力解除孔的施工，用于减小作用于基桩上的不平衡土压力；(2)隔离帷幕施工：在应力解除孔施工完成后，在基桩偏位的方向，施工钢板桩形成“U”字型隔离帷幕；(3)高压喷射控制式纠偏施工：对基桩桩后2‑4倍桩径范围内土体采用双管或三管旋喷工艺进行高压旋喷桩的施工，进行基桩的纠偏；(4)实时监测：在开始纠偏前，应进行桩顶监测点布设，当监测到基桩回位至原桩位时，纠偏工作完成。本发明可实现基桩纠偏回位，且不会导致基桩发生附加内力，可极大解决软土地基基桩偏位问题，具有显著的经济效益和社会效益。
Soft soil foundation pile deviation rectifying method
一种软土地基基桩纠偏方法
LI ZHIWEI (author) / ZHAO JIANHAO (author) / FANG JIAQIANG (author) / LUO ZHENHAI (author) / YANG JIANXUE (author) / HONG YIYONG (author)
2021-10-08
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
Iron tower pile foundation deviation rectifying structure and deviation rectifying process thereof
| European Patent Office | 2024
| European Patent Office | 2023
Deviation rectifying method for soil foundation building
| European Patent Office | 2023
Lime pile foundation deviation rectifying structure and construction method thereof
| European Patent Office | 2023
| European Patent Office | 2021